dhtmlxCombo Minimum Characters

Is there a way on the combobox to set a minimum number of characters that are entered before it calls for the XML?

I’m using autocomplete mode where it is calling a file with the options for the combobox.

Combo API doesn’t provide this functionality. You can modify the dhtmlxcombo.js as follows:

locate the filterSelf method and replace the highlighted line:

dhtmlXCombo.prototype.filterSelf = function(mode)

var text=this.getComboText();
if (this._xml){

with this one:

if (this._xml && (text.length >= MINIMUM_NUMBER)){

Where MINIMUM_NUMBER is the necessary number of characters.